https://sibi.upn.mx/cgi-bin/koha/opac-search.pl?q=ccl=au%3A%22Kropp%2C%20Paul%2C%22&sort_by=title_az&format=rss 2 0 50 ISBN:9684038127 https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=117596 ]]> By Kropp, Paul.
México : Selector, 1994 .
174 p. : 9684038127

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]]> https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=117596 ISBN:958047673X https://sibi.upn.mx/cgi-bin/koha/opac-detail.pl?biblionumber=141350 ]]> By Kropp, Paul,.
Bogotá : Norma, 2004 .
316 páginas 958047673X

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